Gas furnace



Feb. 21, 1928. 1,659,900

w. E. WILLIAMS f GAS FURNACE Filed Nov. 22 192 l'/VENTR. WILL/HM E.WML/ms.,

iff/MWL HTTO'RIVEY.

latented Feb. 21, 1,928. i

PATENT OFFICE.

WILLIAM E. WILLIAMS, OF LONG BEACH, CALIFORNIA.

GAS FURNACE.

Application led November 22, 1926. Serial No. 149,889.

An object of my invention is to provide a gas furnace in which a largevolume of air can be quickly and effectively heated with a minimumconsumption of fuel.

Another object is to provide a gas furnace which is simple inconstruction and inexpensive to manufacture.

Other objects, advantages, and features of invention may appear from theaccompanying drawing, the subjoined detailed description, and theappended claims. Y

In the drawing- F ig. 1 is a transverse sectional view of my furnace. jY

Fig. 2 is a sectional view taken on line 2, 2, F ig. l.

. Referring more particularly to the drawing:

My furnace comprises an inner shell 1 and a second shell 2 is spacedfrom the inner shell 1, said second shell having a plurality of outletpipes 3 extending therefrom. An outer shell 4 is spaced from the shell 2and is provided with an air inlet 5 through which the airpassing throughthe furnace is taken. INithin the shell 1 I provide an air duct 6 whichinclines upwardly at an angle and is opened at both ends thereof to thespace 7 between the shells 1, 2. A second air duct 8 positioned abovethe duct 6 also inclines upwardly at an angle and is opened at eitherend thereof to the space 7.

A fuel burner 9 extends into the shell l below the duct 6, said burnerbeing of an)r suitable design and is adapted to heat the interior of theshell 1. clined` fire wall 10 is formed inside of the shell 1 and ispositioned rearwardly of the duct 6, 8, said wall being preferablyformed by extending the floor of the shell upwardly so as to provide ahollow space 11 through which the incoming air passes, vas will befurther described.

A vertical duct 12 extends through the j shell 1 and is open at eitherend to the `shell 2. A vent pipe 18 extends from the shell 1 Arearwardly inv into the-shell 2 and out of the outlets 3. The

air also passes upwardly through the duct 12 and in passing therethrough is heated by the exhaust gases, which gases are movingdownwardly to the vent V13. The fire wall 10 serves to partially confinethe heating in the forward end of the shell 1 and forces the hot gasesto move upwardly over the top of said wall as shown at 111.

Having described my invention, I claim:

1. A furnace comprising an inner shell, a

second shell spaced therefrom, inclined ducts Y in'said inner shell,said ducts being open to the second shell, a burner extending into saidinner shell, a. fire wall in said inner shell adjacent the rear thereof,and a vent extending from said shell at the rear thereof, and a verticalduct in said inner shell back of theV fire wall.

2. A furnace comprising an inner shell, a second shell surrounding saidinner shell and spaced therefrom, an outer shell spaced from the secondshell and having an air inlet port therein through which fresh air isdrawn, a

rpair of ducts in said inner shell, said ducts 'the rear and adjacentthe lower end thereof.

WILLIAM E. WILLIAMS.

